Erreur 501 5.1.0

Je reçois depuis hier différent message de mon serveur qui est refusé par orange à plusieurs niveau A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: [email protected] host smtp-in.orange.fr [80.12.26.32] SMTP error from remote mail server after pipelined MAIL…. to be continued
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